Water purification apparatus and system

Details Water purification apparatus and system Water purification apparatus and system

2007-06-12

2007-06-12

Smith, Duane (Department: 1724)

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With spaced non-particulate separating means

C210S282000

Reexamination Certificate

active

10723271

ABSTRACT:
The invention relates to a two-stage design for a water purification system, with water to be purified first passing through a first stage containing particulate filtration media, and a second stage containing a porous filtration block. The particulate filtration media can be the same as, or different from, material included in the porous block. Either material may be any material that removes contaminants from water by, e.g., absorption, adsorption, ion exchange, sequestration, or other mechanism, or any combination of these.

REFERENCES:
patent: 3950251 (1976-04-01), Hiller
patent: 4654142 (1987-03-01), Thomsen et al.
patent: 5338458 (1994-08-01), Carrubba et al.
patent: 5609759 (1997-03-01), Nohren et al.
patent: 6524477 (2003-02-01), Hughes
patent: 2001/0042719 (2001-11-01), Levy
patent: 2004/0060873 (2004-04-01), Yanou et al.

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